om049288h_si_003.cif (41.2 kB)

Reaction of 1-Zirconacyclopent-3-yne with “Zirconocene”:  Synthesis and Structure of Bimetallic 1,2,3-Butatriene Complexes1

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posted on 25.04.2005 by Noriyuki Suzuki, Takaaki Watanabe, Masakazu Iwasaki, Teiji Chihara
A 1-zirconacyclopent-3-yne complex (1) reacted with “zirconocene” to give a symmetrical, bimetallic 1,2,3-butatriene complex (6) in which butatriene coordinates to two equivalent zirconocene units. Treatment of 6 with trimethylphosphine gave the phosphine-stabilized zirconocene−1 complex (2), which was transformed into 6 by addition of triethylborane.

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